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Altera_Forum
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8 years ago

Quartus 17.1 What does this error message mean?

Problem Details Error: Internal Error: Sub-system: PGME, File: /quartus/pgm/pgme/pgme_algorithm.cpp, Line: 1109 Illegal tap position Stack Trace: 0x4f38e: PGME_ALGORITHM::get_id_index ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

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It error always happens in the versions 16.0, 17.1.

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You didn't actually tell when it happens, e.g. compiling a specific project, in which phase, etc.

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After this error, I need to restart my computer because the USBblaster does not work after that.

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This is usually indicating that part of Quartus is still running. To terminate it without restarting Windows, you can use the task manager.